Important Note: Batteries with a long shelf life are critical when storing in emergency kits and Essential Packs guarantees that this battery has a "Best used Before" date of 10 years from time of purchase.
Duracell AA alkaline batteries offer dependable, long-lasting power every time! Both Duracell Procell and Duracell Coppertop batteries are the most trusted brand among families and doctors, which continues to grow Duracell's reputation for excellence with every product manufactured.
Procell is the professional brand from the Duracell Company.
Several tests were conducted on these batteries while they were used in clocks. The results showed that Energizer AA batteries lasted almost three times longer than Duracell batteries. However, when used in flashlights, Energizer batteries lasted up to 3 hours or so whereas the Duracell batteries lasted up to 6 hours!
When comparing rechargeable AA batteries, Gizmodo found that Duracell lasted longer (5 to 6.5 hours) than Energizer batteries (2 to 3.5 hours). Both companies batteries are NiMH (nickel metal hydride), the Duracells are 2000 mAh and the Energizer batteries are 2200 mAh.
The results showed that the Amazon battery is about 88 percent the capacity of the Duracell. If you calculate the cost per unit capacity, the batteries are almost identical. The Amazon battery was actually slightly more expensive when represented in cost per Watt-Hour.
Non-rechargeable AA and C batteries. Duracell was found to outperform Energizer. Anecdotal evidence from the author suggests that Energizer AA batteries lasted longer (up to three times) than Duracell AA batteries when used in clocks.
Both Duracell Procell and Coppertop alkaline batteries are made with the same long-lasting, dependable technology Duracell customers have come to expect. Duracell AA alkaline batteries offer dependable, long-lasting power every time!
Duracell Coppertop AA and AAA alkaline batteries contain Duracell's patented POWER BOOST™ Ingredients which deliver lasting performance in your devices.